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18 5.36 368 174 1.95 50.0 13 3 <br /> 19 5.22 360 186 2.63 50.0 17 2 <br /> 20 5.79 208 181 2.92 50.0 24 5 <br /> 21 5.35 319 178 2.67 70.0 25 3 <br /> 22 5.94 262 177 2.13 40.0 16 4 <br /> 23 6.01 241 161 2.41 50.0 16 4 <br /> During HCT testing effluent samples were collected and submitted for analytical testing. The following <br /> table includes results for the Creede Formation Portal+1391-ft HCT.Concentrations of metals were <br /> measured at concentrations near or below method detection limits,or followed a decreasing <br /> concentration trend during testing,with the exception of beryllium and lead-their concentrations <br /> remained stable. <br /> HCT Test F1391-051113 Analytical Results <br /> Analysis, Week 0 Week 1 Week 2 Week 4 Week 8 Week 12 Week 16 Week 20 Week 24 <br /> mg/L <br /> Alkalinity, <1.0 <1.0 <1.0 <1.0 <1.0 (29) (18) (24) (25) <br /> CaCO3 <br /> CO3,CaCO3 <1.0 <1.0 <1.0 <1.0 <1.0 N/A N/A N/A N/A <br /> HCO3 <1.0 <1.0 <1.0 <1.0 <1.0 N/A N/A N/A N/A <br /> Aluminum 0.85 0.60 0.35 0.36 0.34 0.30 0.26 0.31 0.26 <br /> Ammonia,as 0.27 0.096 0.086 0.078 0.069 <0.050 <0.050 0.064 0.17 <br /> Nitrogen <br /> Antimony 0.0041 0.0031 0.0025 0.0034 0.0038 0.0032 0.0027 0.0027 0.0030 <br /> Arsenic 0.0094 0.0091 <0.0050 0.0060 0.0062 <0.0050 <0.0050 <0.025 0.0063 <br /> Barium <0.010 0.015 0.013 0.012 0.019 0.018 0.020 0.022 0.021 <br /> Beryllium 0.0048 0.0044 0.0028 0.0035 0.0046 0.0049 0.0048 0.0054 0.0044 <br /> Bismuth <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <br /> Boron <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 0.20 <0.10 <br /> Cadmium 0.44 0.40 0.24 0.25 0.24 0.21 0.19 0.20 0.16 <br /> Calcium 110 79 42 36 28 22 18 18 15 <br /> Chloride <5.0 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <br /> Chromium <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <br /> Cobalt 0.12 0.096 0.054 0.054 0.047 0.041 0.037 0.038 0.033 <br /> Copper 0.067 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <br /> Fluoride 0.54 0.56 0.35 0.33 0.35 0.27 0.16 <0.10 <0.10 <br /> Gallium <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <br /> Hardness, 300 220 120 97 78 59 49 49 41 <br /> Total <br /> Iron 2.4 0.58 0.30 0.37 0.75 1.2 1.5 2.3 2.2 <br /> 8 <br />